[Techspot] 6 generations of AMD Radeon $200 GPUs compared

[Bacon1]

The power consumption results look fine to me. Other reviews show RX 480 power consumption around that of 380/380X, and the RX 480 can consume 40+ watts more than 270X in gaming benchmarks. The RX 480 is pushing the CPU and rest of the system harder than that of the 270X, which is why system power consumption of the RX 480 is more than ~40W higher than that of the 270X system.

The major issue is the huge difference between games.

https://www.computerbase.de/2016-06...nahme-des-gesamtsystems-star-wars-battlefront

SWBF: 242 -> 291 power (base -> "Max OC")

ROTTR: 205 -> 252

XCOM2: 236 -> 260

So we went anywhere from 205 -> 291 which is a massive difference in power usage.

 

[eRacer]

Variations are huge when you compare results from several reviewers (AT, HC, TPU, Guru3D, Computerbase...). For example, in CBs test RX 480 consumes ~40W more than R7 370. And we know R9 270X consumes ~30W more than R7 370. In Guru3D test, RX480 consumes less then R9 270X
https://www.guru3d.com/articles_pages/gigabyte_radeon_rx_480_g1_gaming_review,5.html

So I find all these tests useless

Your Guru3D link has nothing to do with typical gaming power consumption as stated in the article: "The Wattage shown below is the card with the GPU(s) stressed 100%, showing only the peak GPU power draw, not the power consumption of the entire PC and not the average gaming power consumption."

Once again, there doesn't seem to be anything wrong with the TechSpot numbers. The RX 480 itself will use more power than the 270X, and since the RX 480 has about twice the performance of the 270X, the increased power consumption of the rest of the system (CPU, etc.) is also making a significant contribution to the higher RX 480 system power consumption numbers.